16.8.
D-Amp Circuit
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C
D
B
E
G
H
F
A
C
D
B
E
G
H
F
L
D-AMP CIRCUIT
SCHEMATIC DIAGRAM - 21
SA-AKX74 D-AMP
CIRCUIT
: AUDIO OUTPUT SIGNAL LINE
: -B SIGNAL LINE
: +B SIGNAL LINE
TO SPEAKER
(SUBWOOFER)
B
TO
MAIN(MICON)
CIRCUIT
(CN201
1)
IN SCHEMA
TIC
DIAGRAM - 9
M
TO
SMPS CIRCUIT
(CN5801)
IN SCHEMA
TIC
DIAGRAM - 22
9
1
R5940
100K
R5918 2.7K
R5913 2.7K
C5933 0.015
TH5900
D4CC11040013
R5926
100
0.47
C5941
220P
C5934
C5932
0.1
C5937
0.1
0.1
C5936
220P
C5935
R5922
10
C5930
0.47
0.1
C5931
R5924
5.6K
C5938
0.1
C5939
0.1
C5947 1000P
C5955
0.1
C5954
0.1
5.6K
R5933
0.68
C5949
D5906
B0EAKM000117
D5905
B0EAKM000117
R5932
22
5.6K
R5934
0.1
C5951
4
2
3
1
SWL-
-
G2
+
G1
SWL+
JK5901
B0EAKM000117
D5904
B0EAKM000117
D5903
C5950
0.1
R5931
22
C5948
0.68
2
4
3
1
G0A150L00003
L5903
C5942 1000P
C5946 16V10
C5944
0.47
C5943 330P
R5925
5.6K
19
21
23
22
20
10
2
18
9
7
45
6
31
2
1
5
14
17
18
16
13
11
C1BA00000497
AUDIO DIGITAL AMPLIFIER
IC5900
10
R5921
C5925
C5926
0.1
0.1
C5917 1000P
C5920 100V22
10
R5917
C5915
0.47
0.47
C5919
220P
C5929
220P
C5927
C5918 330P
R5914
5.6K
R5911
5.6K
C5928 0.015
C5921
0.1
C5924
33P
C5923
0.1
R5923 6.8K
R5928
82K
Q5905
B1ABCF000176
SWITCH
B1ABCF000176
Q5906
R5915
10K
82K
R5927
10V100
C5945
B1ABCF000176
SPEAKER PROTECTION SWITCH
SPEAKER PROTECTION SWITCH
Q5907
R5901 120K
B1GBCFJJ0051
FREQUENCY HOPPING
QR5900
R5935
10K
R5904
10K
10
R5905
0
C5956
C5901 1000P
4
6
7
5
1
2
3
9
8
CN5902
0.1
C5904
0.1
C5903
2
4
3
1
6
5
ZJ5901*
B1GDCFJJ0047
+5V POWER SUPPLY
QR5901
L5902
J0JKB0000020
50V220
C5908
C5909
0.1
C5910
0.1
50V220
C5907
L5901
J0JKB0000020
C5905
0.1
0.1
C5906
B1ADCE000012
+5V VOLTAGE SUPPLY SWITCH
Q5902
R5910 1.5K
R5909
33K
R5906 180K
Q5901
B1ABGC000005
SWITCH
R5907
27K
R5903
10K
R5908
10K
Q5903
B1ABCF000176
MODE SWITCH
MODE
IN2+
VSSP2
PROT
OUT1
VDDP1
BOOT1
SGND1
VDDA1
VSSA1
OSC
STABI
VSSP1
VSSD
OUT2
SGND2
VSSA2
VDDA2
BOOT2
VDDP2
IN1-
IN1+
IN2-
SYS_GND
+35V_SENSE
+35V_SENSE
-35V_SENSE
SYS_GND
-35V_SENSE
+5V
MOD_DA
+5V GND
SIGNAL AGND
SUBWOOFER
MUTE_F
DC_DET
FHOP
AGND
NOTE: “ * ” REF IS FOR INDICATION ONLY
G2
G1
HEATSINK*
3
2
1
ZJ5900*
101
Nota:
Para
el
valor
y
clave
de
cada
componente
referirse
a;
"Lista
de
partes
Eléctricas"
a
partir
de
la
página
134.
Summary of Contents for SA-AKX74LM-K
Page 14: ...5 General Introduction 5 1 Media Information 14 ...
Page 15: ...6 Location of Controls and Components 6 1 Remote Control Key Button Operation 15 ...
Page 16: ...6 2 Main Unit Key Button Operation 16 ...
Page 17: ...7 Installation Instructions 7 1 Speaker and A C Connection 17 ...
Page 26: ...9 1 2 Main P C B Front Side Fig 2 Main P C B Front Side 26 ...
Page 30: ...9 3 D Amp IC Operation Control 30 ...
Page 35: ...11 2 Main Components and P C B Locations 35 ...